RÉSUMÉ
Hypertension continues to be the leading cause of death and disability in the industrialized world, with a high level of unawareness and unacceptably poor control rates. Therefore, the Argentinian Society of Hypertension, in association with the May Measurement Month (MMM) charity, implemented an awareness campaign during May 2021. A voluntary cross-sectional survey was carried out during the month of May 2021 in public spaces and health centres across 29 cities in Argentina. Hypertension was defined as systolic blood pressure (BP) ≥ 140â mmHg and/or diastolic BP ≥ 90â mmHg based on the mean of the second and third of three BP measurements or in those volunteers on treatment for high BP. Statistical analysis including multiple imputation followed the MMM protocol. A total of 26 070 individuals (average age 53.4 years, 14 816 women and 11 254 men) were evaluated. The age- and sex-standardized mean BP was 125.1/77.6â mmHg. Of all participants, 54.4% had hypertension. Although 79.8% of the hypertensive participants were aware of their condition and 76.9% were on antihypertensive treatment, only 42.5% of all individuals with hypertension had their BP controlled (<140/90â mmHg). Of those on antihypertensive medication, 55.3% were controlled. The low level of hypertension control highlights the critical need for community-based prevention strategies to increase the awareness and control of hypertension, thereby reducing the enormous health burden attributed to this condition.
RÉSUMÉ
The present document provides scientific evidence reviewed and analysed by a group of specialist clinicians in hypertension that aims to give an insight into a pharmacological strategy to improve blood pressure control. Evidence shows that most hypertensive patients will need at least two drugs to achieve blood pressure goals. There is ample evidence showing that treatment adherence is inversely related to the number of drugs taken. Observational studies show that use of drug combinations to initiate treatment reduces the time to reach the treatment goal and reduces CVD, especially with single pill combinations (SPCs). This work, based on recommendations of the Argentine Federation of Cardiology and Argentine Society of Hypertension as a reference, aims to review the more recent evidence on SPC, and to serve as guidelines for health professionals in their clinical practice and to the wider use of SPCs for the treatment of hypertension. Evidence from clinical trials on the effectiveness and adverse effects of using SPCs are provided. An analysis is also made of the main contributions of SPCs in special populations, e.g., elderly and diabetic patients, and its use in high risk and resistant hypertension. The effects of SPCs on hypertensive-mediated organ damage is also examined. Finally, we provide some aspects to consider when choosing treatments in the economic context of Latin-America for promoting the most efficient use of resources in a scarce environment and to provide quality information to decision makers to formulate safe, cost-effective, and patient-centered health policies. Finally, future perspectives and limitations in clinical practice are also discussed.
Sujet(s)
Cardiologie , Hypertension artérielle , Humains , Sujet âgé , Antihypertenseurs/effets indésirables , Pression sanguine , Association médicamenteuseRÉSUMÉ
INTRODUCTION: Cardiovascular risk seems not to be greater in patients with white coat uncontrolled hypertension (WUCH) than in patients with sustained blood pressure (BP) control. Therefore, its detection is important to avoid overtreatment. The COVID-19 pandemic determined a massive migration of hypertension consultations from the face-to-face modality to teleconsultations, and it is unknown whether WUCH exists in this context. AIM: We aimed to evaluate the prevalence of WUCH through home BP monitoring (HBPM) in treated hypertensive patients evaluated by teleconsultation. METHODS: We included treated hypertensive patients that owned a digital BP monitor. During teleconsultation, patients were asked to perform two BP measurements and then a 7-day HBPM, using the same device. Patients were classified as having WUCH if BP was ≥ 140 and/or 90 mmHg in teleconsultation and < 135/85 mmHg on HBPM. The prevalence of WUCH and its 95% confidence interval were estimated. One-way ANOVA, the Chi-square test or Fisher's exact test were used to compare the characteristics of these patients with the other groups. RESULTS: We included 341 patients (45.2% male, mean age 62.3 years). The prevalence of WUCH was 33.1% (95% CI 28.3-38.3%). Significant differences were found in terms of age, the number of antihypertensive drugs and the use of calcium channel blockers, all lower in the WUCH group as compared with the groups with elevated BP on HBPM. CONCLUSION: WUCH exists in teleconsultation and is very frequent. It can be easily detected though HBPM, thus avoiding overmedication, and its potential impact on side-effects and health costs.
Sujet(s)
COVID-19 , Hypertension artérielle , Consultation à distance , Hypertension de la blouse blanche , Antihypertenseurs/effets indésirables , Pression sanguine , Surveillance ambulatoire de la pression artérielle , Femelle , Humains , Hypertension artérielle/diagnostic , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/épidémiologie , Mâle , Adulte d'âge moyen , Pandémies , Hypertension de la blouse blanche/diagnostic , Hypertension de la blouse blanche/traitement médicamenteux , Hypertension de la blouse blanche/épidémiologieRÉSUMÉ
The Argentinean Society of Hypertension, in agreement with the May Measurement Month (MMM) initiative of the International Society of Hypertension, implemented for the third consecutive year a hypertension screening campaign. A volunteer cross-sectional survey was carried out in public spaces and health centres during the month of May 2019 across 33 cities in Argentina. Hypertension was defined as systolic blood pressure (BP) ≥140 mmHg and/or diastolic BP ≥90 mmHg based on the mean of the second and third BP measurements, or in those on treatment for high BP. A total of 94 523 individuals (53.9 ± 17.8 years old, 55 231women and 39 292 men), were evaluated. The age and sex standardized mean BP was 124.7/77.2 mmHg. Among participants, 34.7% were overweight (25-29.9 m/kg2) and 28.7% had obesity (≥30 m/kg2). Individuals identified as being overweight had BP 3/2 mmHg higher and individuals with obesity 6/4 mmHg higher than those with normal weight. The prevalence of hypertension was 52.5%. Although 81.1% were aware and 77.7% were on antihypertensive treatment, only 46.0% of all individuals with hypertension had their BP controlled. Moreover, 19.8% of those not on any antihypertensive medication were found with raised BP. The low level of control of hypertension generates the critical need for the development of community-based prevention strategies reinforcing strategies to increase the awareness and control of hypertension.
RÉSUMÉ
Information regarding predictors of a worse COVID-19 prognosis in the South American population is scarce. We aimed to determine whether the blockade of the renin-angiotensin system is associated with a worse clinical course of COVID-19, and to evaluate what clinical variables are associated with COVID severity in our population. We included adult subjects with rtPCR-confirmed COVID-19. The use of renin system inhibitors was defined according to its registration in the electronic medical record or the hospital pharmacy registry during the previous three months. Our endpoint was a composite of death or mechanical ventilation requirement. Patients were followed up until discharge or death. A multiple logistic regression model was used to determine the predictors of the composite endpoint. In all, we included 4930 COVID+ patients, the median age was 52 years, and 48.1% were male. The endpoint occurred in 488 patients (9.9%). In adjusted analysis, neither angiotensin converting enzyme inhibitors nor angiotensin receptor blockers were associated with the outcome. Independent predictors of mortality and/or mechanical ventilation requirement were age, male sex, a history of diabetes and/or chronic kidney disease, smoking and dementia. To conclude, renin system inhibitors seem to be unrelated to COVID-19 severity, whereas prognosis is independently associated with age, male sex and comorbidities.
Sujet(s)
Antagonistes des récepteurs aux angiotensines/usage thérapeutique , Inhibiteurs de l'enzyme de conversion de l'angiotensine/usage thérapeutique , Traitements médicamenteux de la COVID-19 , Ventilation artificielle/statistiques et données numériques , Indice de gravité de la maladie , Adulte , Facteurs âges , Sujet âgé , Argentine/épidémiologie , COVID-19/épidémiologie , COVID-19/mortalité , Villes/épidémiologie , Comorbidité , Démence/épidémiologie , Diabète/épidémiologie , Femelle , Humains , Modèles logistiques , Mâle , Adulte d'âge moyen , Pandémies , Pronostic , Insuffisance rénale chronique/épidémiologie , Facteurs sexuels , Fumer/épidémiologie , Centres de soins tertiairesRÉSUMÉ
Hypertension continues to be the leading cause of death and disability in the industrialized world, with a high level of unawareness and unacceptably poor control. Therefore, the Argentinian Society of Hypertension, in agreement with the May Measurement Month (MMM) initiative of the International Society of Hypertension, implemented for the second consecutive year an educational campaign during the month of May 2018. A volunteer cross-sectional survey was carried out in public spaces and health centres during the month of May 2018 across 33 cities in Argentina. Hypertension was defined as systolic blood pressure (BP) ≥140 mmHg or diastolic BP ≥90 mmHg based on the mean of the 2nd and 3rd of three consecutive BP measurements, or in those on treatment for high BP. Statistical analysis including multiple imputation followed the MMM protocol. A total of 70 418 individuals were screened during MMM18, after excluding those under 18 years old. Of the total, 43.8% of participants were classified as hypertensive, 77.7% were aware of their diagnosis, 69.1% were on pharmacological treatment, and 38.7% were controlled. Of those on antihypertensive medication, 56.0% were controlled. It is necessary to reinforce strategies not only to increase the awareness and control of hypertension but also to identify the population groups, in which these strategies would have the greatest impact, helping to reduce the enormous health burden attributed to hypertension.
RÉSUMÉ
OBJECTIVES: To raise awareness of blood pressure, measured by number of countries involved, number of people screened, and number of people who have untreated or inadequately treated hypertension. METHODS: An opportunistic cross-sectional survey of volunteers aged at least 18 years was carried out in May 2017. Blood pressure measurement, the definition of hypertension and statistical analysis followed the standard May measurement month protocol. Eighteen countries in Latin America and the Caribbean participated in the campaign, providing us with a wide sample for characterization. RESULTS: During May measurement month 2017 in Latin America and the Caribbean, 105â246 individuals were screened. Participants who had cardiovascular disease, 2245 (2.3%) had a prior myocardial infarction, and 1711 (1.6%) a previous stroke, additionally 6760 (6.4%) individuals were diabetic, 7014 (6.7%) current smokers and 9262 (8.8%) reported alcohol intake once or more per week. Mean SBP was 122.7âmmHg and DBP was 75.6âmmHg. After imputation, 42â328 participants (40,4%) were found to be hypertensive. CONCLUSION: The high numbers of participants detected with hypertension and the relatively large proportion of participants on antihypertensive treatment but with uncontrolled hypertension reinforces the importance of this annual event in our continent, to raise awareness of the prevention of cardiovascular events.
Sujet(s)
Hypertension artérielle/épidémiologie , Adolescent , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Antihypertenseurs/usage thérapeutique , Pression sanguine/physiologie , Mesure de la pression artérielle , Études transversales , Diabète , Femelle , Humains , Hypertension artérielle/traitement médicamenteux , Amérique latine/épidémiologie , Mâle , Dépistage de masse , Adulte d'âge moyen , Fumer , Jeune adulteRÉSUMÉ
En la Argentina no existen datos epidemiológicos sobre displasia fibromuscular. La realización de un registro nacional puede aportar información que conduzca a una actualización de los consensos y recomendaciones para un correcto diagnóstico, evaluación y tratamiento. El Registro Argentino de Displasia Fibromuscular (SAHARA-DF) inició su actividad de recopilación de datos en octubre de 2015. Al año 2019 se confirmaron 49 pacientes (44 mujeres, 38 hipertensos, edad 45,3 ± 17,2 años, 12 con presentación neurológica). Veintidós pacientes tuvieron lesiones vasculares en más de un sitio, a pesar del sesgo diagnóstico por falta de estudios complementarios en casi la mitad de los casos. El sitio afectado más frecuente fue el renovascular, seguido por el carotídeo y el ilíaco, y las lesiones multifocales fueron más frecuentes que las unifocales (35 versus 14, respectivamente). Se constató la presencia de aneurismas asociados en 13 casos y disección arterial en 4 casos. De las 22 angioplastias renales realizadas, 14 fueron con colocación de stent (endoprótesis). En este estudio preliminar de una población argentina se evidencia el carácter sistémico de la enfermedad y se plantea un llamado a actuar en cuanto a la necesidad de debatir el algoritmo diagnóstico y el método de tratamiento. (AU)
In Argentina there are no epidemiological data regarding fibromuscular dysplasia. Building a National Registry may provide information leading to updated consensus and recommendations for a correct diagnosis, assessment and treatment. Data gathering for the Argentine Registry of Fibromuscular Dysplasia (SAHARA-DF) was initiated in October 2015. By 2019, 49 patients were confirmed (44 women, 38 hypertensives, age 45.3 ± 17.2 years, 12 with a neurological presentation). Twenty-two patients had multi-site vascular lesions, in spite of a diagnosis bias due to lack of supporting studies in almost half of the cases. The renovascular site was the most affected, followed by the carotid and iliac sites, and multifocal lesions were more frequent than unifocal (35 versus 14, respectively). Associated aneurysms were found in 13 cases, and arterial dissection in 4. Twenty-two renal angioplasties were performed, 14 with stent placement. In this preliminary study of an Argentinian population, the systemic nature of the disease is evidenced, and a call for action arises regarding the need for discussing the diagnostic algorithm and treatment method. (AU)
Sujet(s)
Humains , Mâle , Femelle , Adolescent , Adulte , Adulte d'âge moyen , Jeune adulte , Documents/statistiques et données numériques , Dysplasie fibromusculaire/diagnostic , Argentine/épidémiologie , Algorithmes , Biais (épidémiologie) , Facteurs sexuels , Études transversales , Facteurs de risque , Facteurs âges , Angioplastie/méthodes , Facteurs Culturels , Lésions du système vasculaire/imagerie diagnostique , Dysplasie fibromusculaire/classification , Dysplasie fibromusculaire/étiologie , Dysplasie fibromusculaire/thérapie , Dysplasie fibromusculaire/épidémiologie , Hypertension artérielle/épidémiologie , 795/imagerie diagnostiqueRÉSUMÉ
Worldwide, hypertension control rate is far from ideal. Some studies suggest that patients treated by specialists have a greater chance to achieve control. The authors aimed to determine the BP control rate among treated hypertensive patients under specialist care in Argentina, to characterize patients regarding their cardiovascular risk profile and antihypertensive drug use, and to assess the variables independently associated with adequate BP control. The authors included adult hypertensive patients under stable treatment, managed in 10 specialist centers across Argentina. Office BP was measured thrice with a validated oscillometric device. Adequate BP control was defined as an average of the three readings <140/90 mm Hg (and <150/90 in patients older than 80 years). The authors estimated the proportion of adequate BP control and the variables independently associated with it through a multiple conditional logistic regression model. Among the 1146 included patients, 48.2% were men with a mean age of 63.5 (±13.1) years old. Mean office BP was 135.3 (±14.8)/80.8 (±10) mm Hg, with a 64.8% (95% CI: 62%-67.6%) of adequate control. The mean number of antihypertensive drugs was 2.1 per participant, the commonest being angiotensin receptor blockers and calcium channel blockers. In multivariable analysis, only female sex was a predictor of adequate BP control (OR 1.33 [95% CI 1.02-1.72], P = .04). In conclusion, almost 65% of hypertensive patients treated in specialist centers in Argentina have adequate BP control. The challenge for future research is to define strategies in order to translate this control rate to the primary care level, where most patients are managed.
Sujet(s)
Pression sanguine/physiologie , Maladies cardiovasculaires/diagnostic , Hypertension artérielle/complications , Sujet âgé , Antagonistes des récepteurs aux angiotensines/usage thérapeutique , Antihypertenseurs/usage thérapeutique , Argentine/épidémiologie , Mesure de la pression artérielle/instrumentation , Inhibiteurs des canaux calciques/usage thérapeutique , Maladies cardiovasculaires/épidémiologie , Études cas-témoins , Études transversales , Femelle , Humains , Hypertension artérielle/traitement médicamenteux , Mâle , Adulte d'âge moyen , Soins de santé primaires/normes , Études prospectives , Facteurs de risqueRÉSUMÉ
Hypertension is a growing concern worldwide, causing over 10 million deaths each year. The prevalence of high blood pressure (BP) in Argentina is 36.3% and 38% of these are unaware of their disease. Half of the hypertensive patients are on pharmacological treatment and only a quarter of them are controlled. The International Society of Hypertension initiated the May Measurement Month (MMM) as a global campaign to raise awareness on high BP that may also serve as a temporary solution to the lack of global screening programs worldwide. A volunteer cross-sectional survey was carried out in May 2017 across 56 health centres. Blood pressure measurement, definition of hypertension and statistical analysis followed the MMM protocol. For this awareness campaign, the Argentine Society of Hypertension coined the slogan: 'Know and control your blood pressure'. A total of 32 346 individuals aged at least 18 years were screened during MMM17. After imputation, 16 263 (50.4%) were hypertensive. Of the 12 156 receiving antihypertensive medication 5400 (44.4%) still had uncontrolled BP. MMM17, called in our country 'Know and control your blood pressure', was the largest BP screening campaign done in Argentina. Almost 6 out of 10 hypertensive patients were either not on treatment or were not controlled to the BP goal. These results suggest that appropriate screening can help to identify a significant number of people with high BP.
RÉSUMÉ
BACKGROUND: Older hypertensive adults under treatment are especially susceptible to hypotensive episodes, which entail an elevated risk. However, data on this subject are very scarce. AIM: The purpose of this study was to determine the prevalence and predictors of office and home hypotension in older (≥ 65 years) treated hypertensive adults. METHODS: Blood pressure (BP) was measured at the office and at home, using a validated oscillometric device. Office and home hypotension were defined as systolic BP (SBP) < 110 and/or diastolic BP (DBP) < 70 mmHg, and SBP < 105 and/or DBP < 65 mmHg, respectively. Masked hypotension was considered when office BP ≥ 110/70 and home BP < 105 and/or < 65 mmHg. We evaluated factors associated with hypotension both at the office and at home through multivariable models. RESULTS: The prevalence of hypotension among the 302 patients included in the study was 29.8% at the office and 23.9% at home, whereas the prevalence of masked hypotension was 10.4%. Older age, lower body mass index and use of calcium channel blockers were associated with office hypotension, while older age, diabetes and ischemic heart disease were predictors for home hypotension. CONCLUSION: Hypotension is frequent in older hypertensive adults under treatment. The presence of diabetes, ischemic heart disease and older age should alert for screening of hypotension at home to avoid overtreatment.
Sujet(s)
Antihypertenseurs/usage thérapeutique , Hypertension artérielle/traitement médicamenteux , Hypotension artérielle/épidémiologie , Sujet âgé , Sujet âgé de 80 ans ou plus , Pression sanguine/effets des médicaments et des substances chimiques , Surveillance ambulatoire de la pression artérielle , Indice de masse corporelle , Études cas-témoins , Études transversales , Femelle , Humains , Hypertension artérielle/épidémiologie , Mâle , PrévalenceRÉSUMÉ
Exaggerated orthostatic blood pressure variation (EOV) is a poorly understood phenomenon related to high cardiovascular risk. We aimed to determine whether hypertensive patients with EOV have a distinct hemodynamic pattern, assessed through impedance cardiography. METHODS: In treated hypertensive patients, we measured the cardiac index (CI), systemic vascular resistance index (SVRI), blood pressure (BP), and heart rate (HR) in the supine and standing (after 3 minutes) positions, defining three groups according to BP variation: 1) Normal orthostatic BP variation (NOV): standing systolic BP (stSBP)-supine systolic BP (suSBP) between -20 and 20 mmHg and standing diastolic BP (stDBP)-supine diastolic BP (suDBP) between -10 and 10 mmHg; 2) orthostatic hypotension (OHypo): stSBP-suSBP≤-20 or stDBP-suDBP≤-10 mmHg; 3) orthostatic hypertension (OHyper): stSBP-suSBP≥20 or stDBP-suDBP≥10 mmHg. We performed multivariable analyses to determine the association of hemodynamic variables with EOV. RESULTS: We included 186 patients. Those with OHyper had lower suDBP and higher orthostatic SVRI variation compared to NOV. In multivariable analyses, orthostatic HR variation (OR = 1.06 (95%CI 1.01-1.13), p = 0.03) and orthostatic SVRI variation (OR = 1.16 (95%CI 1.06-1.28), p = 0.002) were independently related to OHyper. No variables were independently associated with OHypo. CONCLUSION: Patients with OHyper have a distinct hemodynamic pattern, with an exaggerated increase in SVRI and HR when standing.
Sujet(s)
Pression sanguine , Hypertension artérielle/physiopathologie , Hypotension orthostatique/physiopathologie , Décubitus dorsal/physiologie , Sujet âgé , Sujet âgé de 80 ans ou plus , Cardiographie d'impédance , Femelle , Rythme cardiaque , Humains , Hypertension artérielle/complications , Hypotension orthostatique/complications , Mâle , Adulte d'âge moyen , Résistance vasculaireRÉSUMÉ
OBJECTIVE: The objective of this study was to compare the aortic piezoelectric device for noninvasive measurement of central aortic systolic blood pressure (cSBP) with the SphygmoCor. PARTICIPANTS AND METHODS: A total of 85 participants from both sexes, aged 18-80 years, were stratified into three age groups (<30, 30-60, >60 years), with an equal number of healthy volunteers and hypertensive patients. We performed three cSBP measurements with each device, in an alternate manner, using the Bland-Altman method to determine the level of agreement. The standard of the Association for the Advancement of Medical Instrumentation for brachial blood pressure evaluation was used for the comparison. RESULTS: The mean cSBPs were 109.3±12.05 and 109.0±12.2 mmHg with the SphygmoCor and the Aortic device, respectively, showing a strong correlation (r=0.98, P<0.001). A mean difference of 0.35±2.43 mmHg (95% confidence interval: 0.17-0.87, P=NS) was obtained with the Bland-Altman method. The 95% limits of agreement was -4.4 to +5.1 mmHg. CONCLUSION: Complying with the Association for the Advancement of Medical Instrumentation criteria, cSBP measurements obtained with the Aortic and the SphygmoCor devices are equivalent.
Sujet(s)
Pression artérielle , Mesure de la pression artérielle/instrumentation , Hypertension artérielle/diagnostic , Adolescent , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Aorte/physiologie , Aorte/physiopathologie , Pression sanguine , Femelle , Humains , Hypertension artérielle/physiopathologie , Mâle , Adulte d'âge moyen , Sensibilité et spécificité , Sphygmomanomètres , Jeune adulteRÉSUMÉ
BACKGROUND: An alerting reaction is a physician-induced phenomenon which produces a transient blood pressure rise in the office. OBJECTIVE: To determine its relationship with target organ damage in treated hypertensives. METHOD: We used three different indexes for calculating alerting reaction depending on the first, second or third office blood pressure measurement. We correlated these indexes with glomerular filtration rate, left ventricular mass index and pulse wave velocity. Thereafter, for multivariate analysis, we selected the index which better correlated with each target organ damage subtype. RESULTS: We included 174 adults, mean age 67(±13.7) years. 75% of the patients had some degree of blood pressure fall between measurements 1-3. In multivariate linear regression models, after adjusting for classic risk factors, two out of the three systolic alerting reaction indexes showed an independent association with target organ damage. After further adjusting for office blood pressure and white coat effect (calculated with standardized home blood pressure monitoring), left ventricular mass index maintained a statistically significant association. CONCLUSION: A higher alerting reaction in the office seems to be related to increased target organ damage in treated hypertensives and should not be considered an innocent phenomenon.
Sujet(s)
Mesure de la pression artérielle/méthodes , Pression sanguine , Maladies cardiovasculaires/étiologie , Maladies du rein/étiologie , Consultation médicale , Hypertension de la blouse blanche/complications , Sujet âgé , Sujet âgé de 80 ans ou plus , Antihypertenseurs/usage thérapeutique , Argentine , Pression sanguine/effets des médicaments et des substances chimiques , Maladies cardiovasculaires/diagnostic , Maladies cardiovasculaires/physiopathologie , Femelle , Débit de filtration glomérulaire , Humains , Rein/physiopathologie , Maladies du rein/diagnostic , Maladies du rein/physiopathologie , Mâle , Adulte d'âge moyen , Valeur prédictive des tests , Pronostic , Analyse de l'onde de pouls , Appréciation des risques , Facteurs de risque , Rigidité vasculaire , Fonction ventriculaire gauche , Remodelage ventriculaire , Hypertension de la blouse blanche/diagnostic , Hypertension de la blouse blanche/physiopathologieRÉSUMÉ
Arterial stiffness, assessed through pulse wave velocity (PWV), independently predicts cardiovascular outcomes. In untreated persons, white-coat hypertension (WCH) has been related to arterial stiffness, but data in treated patients with WCH are scarce. The authors aimed to determine a possible association between WCH and arterial stiffness in this population. Adult treated hypertensive patients underwent home blood pressure monitoring and PWV assessment. Variables associated with PWV in univariable analyses were entered into a multivariable linear regression model. The study included 121 patients, 33.9% men, median age 67.9 (interquartile range 18.4) years, 5.8% with diabetes, and 3.3% with a history of cardiovascular or cerebrovascular disease. In multivariable analysis, WCH in treated hypertensive patients remained a determinant of PWV: ß=1.1 (95% confidence interval, 0.1-2.1 [P=.037]; adjusted R2 0.49). In conclusion, WCH is independently associated with arterial stiffness in treated hypertensive patients. Whether this high-risk association is offset by antihypertensive treatment should be further investigated.
Sujet(s)
Antihypertenseurs/pharmacologie , Rigidité vasculaire , Hypertension de la blouse blanche/traitement médicamenteux , Sujet âgé , Sujet âgé de 80 ans ou plus , Antihypertenseurs/usage thérapeutique , Pression sanguine/effets des médicaments et des substances chimiques , Surveillance ambulatoire de la pression artérielle , Études transversales , Femelle , Humains , Modèles linéaires , Mâle , Adulte d'âge moyen , Analyse de l'onde de pouls , Facteurs de risque , Résultat thérapeutique , Hypertension de la blouse blanche/physiopathologieRÉSUMÉ
Introducción: En un estudio previo que incorporó mediciones posalmuerzo al esquema convencional de monitoreo domiciliario de la presión arterial hemos detectado hipotensión posprandial en alrededor de la cuarta parte de nuestros pacientes hipertensos. Objetivos: Comparar el cambio posprandial de la presión arterial sistólica, y la correspondiente respuesta cronotrópica, en relación con el control de la hipertensión. Material y métodos: Se evaluaron prospectivamente con monitoreo domiciliario de la presión arterial 140 pacientes hipertensos tratados, mayores de 40 años. El control de la hipertensión se basó en el promedio de la presión arterial matinal y la vespertina, tomando como valor de corte 135/85 mm Hg. Se consideró hipotensión posprandial cuando la presión arterial sistólica disminuyó 20 mm Hg o más respecto del valor preprandial en al menos uno de tres almuerzos. Resultados: Se detectó hipotensión posprandial en el 13,2% (n = 10) de los hipertensos controlados y en el 42,2% (n = 27) de los no controlados (p < 0,001). Después de los almuerzos, la presión arterial sistólica disminuyó en promedio 9,5 ± 10,5 mm Hg (6,4% ± 7,8%) en los hipertensos no controlados y 3,2 ± 7,8 mm Hg (2,6% ± 6,5%) en los controlados (p < 0,001), sin diferencia significativa en la respuesta cronotrópica. Al estratificar a los pacientes por el control de la hipertensión se observó una correlación inversa entre la respuesta posprandial de la frecuencia cardíaca y de la presión arterial sistólica en los controlados (r = -0,24; p = 0,035), sin relación significativa en los no controlados. En el análisis de regresión lineal múltiple, la falta de control de la hipertensión (beta = -0,26; p = 0,002) y el sexo femenino (beta = 0,22; p < 0,001) fueron predictores significativos de la caída posprandial en la presión arterial sistólica, sin influencia significativa de la edad o del número de fármacos antihipertensivos. Conclusión: La falta de control de la hipertensión se asoció con una respuesta circulatoria posprandial anormal que favorece la hipotensión.
Background: In a previous study that incorporated post-lunch measurements to the conventional scheme of home-based blood pressure monitoring, we detected postprandial hypotension in about a quarter of hypertensive patients. Objectives: The aim of this study was to compare the postprandial change of systolic blood pressure, and the corresponding chronotropic response, associated to the control of hypertension. Methods: We prospectively evaluated 140 treated hypertensive patients, aged over 40 years, with home-based blood pressure monitoring. The control of hypertension was based on the average morning and evening blood pressure, considering 135/85 mmHg as cutoff value. Postprandial hypotension was defined as a drop in systolic blood pressure equal to or greater than 20 mmHg with respect to the preprandial value in at least one of three lunches. Results: Postprandial hypotension was found in 13.2% (n=10) of patients with controlled hypertension and in 42.2% (n=27) with uncontrolled hypertension (p<0.001). After lunch, the average decrease of systolic blood pressure was 9.5±10.5 mmHg (6.4%±7.8%) in patients with uncontrolled hypertension and 3.2±7.8 mmHg (2.6%±6.5%) in those with controlled hypertension (p<0.001), with no significant difference in the chronotropic response. After stratifying the patients by hypertension control, the postprandial response of heart rate and systolic blood pressure showed a significant inverse correlation in controlled hypertensive patients (r=-0.24; p=0.035), and a not significant correlation in uncontrolled patients. On the multiple linear regression analysis, lack of blood pressure control (beta=0.26, p=0.002) and female gender (beta=0.22; p<0.001) were significant predictors of a postprandial drop in systolic blood pressure, without a significant influence of age or number of antihypertensive drugs. Conclusion: Lack of blood pressure control was associated with an abnormal postprandial circulatory response that predisposes to hypotension.
RÉSUMÉ
We aimed to determine the characteristics of home blood pressure (BP) in very elderly hypertensives. A total of 485 treated hypertensive patients ≥18 years (median age, 70.8 [interquartile range, 18]; 67.2% women) underwent home BP measurements. Characteristics of patients ≥80 and <80 years of age and prevalence of office and home uncontrolled hypertension, isolated morning (IMH), isolated evening, isolated office, and masked hypertension were compared. Very elderly subjects had higher levels of systolic and lower levels of diastolic BP at home, a higher prevalence of home uncontrolled hypertension (68.5% vs. 37.7%; P < .001), masked hypertension (30.6% vs. 14.9%; P = .02), and IMH (19.4% vs. 10.9%; P = .02), and a lower prevalence of isolated office hypertension (8.3% vs. 18.8%; P = .01). When using differential home BP thresholds in the very elderly, determined through the percentile method, statistical differences disappeared, except for IMH. The very elderly depict a particular home BP profile. Benefit from using differential home BP thresholds should be determined in prospective studies.
Sujet(s)
Antihypertenseurs/usage thérapeutique , Surveillance ambulatoire de la pression artérielle , Facteurs âges , Sujet âgé , Sujet âgé de 80 ans ou plus , Argentine , Mesure de la pression artérielle/méthodes , Surveillance ambulatoire de la pression artérielle/méthodes , Surveillance ambulatoire de la pression artérielle/normes , Études transversales , Femelle , Personne âgée fragile , Humains , Hypertension artérielle/diagnostic , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/physiopathologie , Mâle , Soins centrés sur le patient/méthodes , Soins centrés sur le patient/normes , PrévalenceRÉSUMÉ
We aimed to determine a possible association between isolated morning hypertension (IMH) and meal-induced blood pressure (BP) fall in adult treated hypertensive patients who underwent home BP measurements. A total of 230 patients were included, median age 73.6, 65.2% women. After adjusting for age, sex, number of antihypertensive drugs, office and home BP levels, the association between IMH and meal-induced BP fall was statistically significant. In conclusion, meal-induced BP fall and IMH detected through home blood pressure monitoring (HBPM) are independently associated in hypertensive patients. The therapeutic implications of such observation need to be clarified in large-scale prospective studies.